Enum cannot be materialized

I have a simple Model with two entities and a 1-n-connection. Both Entities have one column Value of type MyEnum which ist handled by an EnumConverter. The following queries will then result an exception:

  result = uow.Entity1s.Where(l => l.Entity2s.Any(e => e.Value == MyEnum.Value1)).ToList();
  result = uow.Entity2s.Where(e => e.Value == MyEnum.Value2).Select(s => s.Entity1).ToList();

Exception:

Unable to materialize field [Value] on type [LocoPlan.Domain.Roms.Model.Entity2]: 
field is type 'LightspeedTest2.MyEnum' but database returned type 'System.Int32'. 
Check your table has an Id column and that your mappings are correct. See inner exception for details.

Is the field handled by an EnumConverter? Im not seeing any issue with this without based on the above setup locally.

Do you have access to the inner exception details as this will contain the underlying exception as to why mapping failed, if not is it possible to send through this project for us to try and reproduce?

Thanks!
Jeremy

Sorry, I was too quick during the model creation and defined the the db-type as int32 instead of byte. Everything is working fine.